Formaldehyde oxime as a precursor to cyanide in mixed-valence copper(I,II) complexes. Hydration of nitrite solvents
Abstract
Copper(II) acetate reacts with formaldehyde oxime (1 : 1) in a nitrite solvent, RCN at ca. 350 K to give a pale blue-green complex [Cu3(O2CMe)5(RCONH2)(CH2NOH)2](R = Me or Ph). The complex having R = Me reacts with acetic anhydride in acetonitrile to give CuCN, [Cu2(O2CMe)4(OH2)2], and [Cu2(CN)2(NCMe)], and with pyridine (py) to give [Cu(O2CMe)(CH2NOH)2], [Cu2(O2CMe)4(py)2], and acetamide.